import java.util.Scanner;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class code1 {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        String s = in.nextLine();

        String[] ss = s.split(" ");
        for(String x:ss) {
            char c = x.charAt(0);
            if('a'<=c && c<='z')  c -= 32;
            System.out.print(c);
        }

    }
}